关键词: DNS查询, 宏观网络分析, Zipf’s定律, 广延指数分布, .CN国家顶级域

Abstract: This paper investigates a full day’s worth of queries looking up the CN domain names，which are collected from the authoritative CN root servers run by China Internet Network Information Center.Through theoretical and empirical study，this paper finds that in one day，the frequencies of CN domains will be queried following the Zipf’s-like distribution，however the number of requests issued from hundreds of thousands of DNS cache servers follows the stretched exponential distribution.The above observations suggest strong global centrality among the queries and self-organizing characteristics of the system.

Key words: Domain Name System（DNS）, measurements, Zipf’s-like distribution, stretched exponential distribution, CN ccTLD